Type-writer attachment.



L. BROWN.

TYPE WRITER ATTACHMENT. APPLICATION FILED we. 22, 1910.

Patented Apr. 25, 1911.

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TYPE WRITER ATTACHMENT. APPLICATION FILED 111111.22, 1910.

990,223. Patented Apr. 25, 1911.

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TYPE WRITER ATTACHMENT.

APPLIOATION I'ILBD AUG. 22. 1910.

990,223. Patented Apr. 25, 1911.

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' WITNESSES INVENTOR WM 7 a 33m [to provide means of LAYTON BROWN, 0FYOUNGSTOWN, OHIO, .ASSIG-NOR 0F ONE-HALF TO FRANK L.

ZIMMERMAN, 0F YOUNGSTOWN, OHIO.

TYPE-WRITER ATTACHMENT.

Specification of Iietters' latent. Patented Apr. 25, 1911;

Application filed August 22, 1910. Serial No. 578,441.

To alllwhom it may concern:

Be it known that I, LAYTON BROWN, a citizen of the United States,residing at Youngstown, in the county of Mahoning and State of Ohio,have invented certain new and useful Improvements in Type-l/VriterAttacl1ments,.of which the following i-saspecification. I

My invention relates to means to be employed in connection withtypewriters, which when 0 erated will return the carria 'e to itsstarting position and at the same time rotate the platen. I

An important object of this invention is the above character,

which are simple in construction, easily operated, and a time saver tothe operator of a typewriter. I

In carrying out my invention I provide any preferred or Well known formof type writer with a spring motor, which is stronger than thespi'ingmotor'for effecting the escapelnent movement of the carriage.This spring motoris suitably connected with the car- 25 riage, so'tliatwhen the carriage has reached .the endfof itsescapement movement, thespringmotor is released and said carriage automatically returned to itsstarting POSI- tion. Simple means is provided to release the springmotor' and at the same time render operative its connection withthecarriage. Means are starting platen upon the return of the carriage toits position, the last named means having connection with and beingoperated by the means for releasing the spring motor.

, In the accompanying drawings formin a part of this specification, and;in which like numerals are employed to designate like viewof the same,

view of "embodying my invention, Fig. 2 1s a :view of the same, Fig.3is' a detail view of the. spring motor and associated members,

parts throughout the same, Figure 1 is an end a typewriter equipped withmeil ns p an Fig. 4 is a left side view of the hollow gear ofthe springmotor, a portion thereof being shown broken away, Fig. 5--is a rightside andFig. 6 is a detail View of a pulley and its connection" withthe' carriage.

In .thedrawings wherein is illustrated a" preferred embodiment of myinvention, the, numeral 1 designates the body frame of a typewriter ofany preferred or well known ype. fUpon thisbody frame, islongitudiprovided near provided for rotating theand suitably extensions20 formed upon the body frame I.

, cured to the sleeve nally movably mounted a carriage 2,within which isrotatably'mounted a platen 3. It is to be understood that the ordinaryspriir 'motor (not shown) is to be employed to e feet the escapementmovement of the carriage. No further detail description of thetypewriter in general will be given.

The right end of the body frame 1 is provided upon its base with spacedbrackets 1, 5 and 6, which are suitably secured upon said base, as shownat 7. 'These brackets slidably support an operating rod 8 carrying uponits forward end akey 9. The rod 8 is its rear end with spaced flanges10, disposed upon opposite sidesof the bracket 6 for limiting thelongitudinal movement of said rod. A bracket 11 is-suitably secured tothe base of the body frame 1, as shown in Fig. 1, and provided with anopening formed there'through to loosely receive the rod 8. This rod isprovided near the bracket 11 with a flange 12 fast upon the same, hayingengagement witha compressi: ble coil spring 13 which also engages thebracket 11. The function of this coil spring is to normally retain therod 8 in its most forward position. The rod 8 is off-set rearwardly ofthe bracket .11 and is provided upon thisolf-set portion with a. toothor lug 14. for engagement with teeth 15 carried by a hollow gear 16.This hollow gear has one side thereof closed by a removable circularplate 17. The gear 16 is rotatably mounted upon a sleeve 18, which isfast 11 on a shaft 19. This shaft 19 is horizontal y disposed journaledthrough brackets or A bevel gear 21. is rigidly mounted upon the shaft19 forwardly of the hollow gear '16. WVithin the hollow spring 22 havingits inner end fixedly se- -18 in any suituble'manher, and its outer end.fixedly secured to the periphery of the hollow gear 16, as shown at.

23.- The hollow gear 16 is normally held against rotation by the tooth14', and when so heldthe spring 22 may be wound up by proper rotation ofa bevel gear 24 disposed in engagement with the bevel ear 21. The bevelgear 24 is rigidly mounte upon a suitably supported shaft 25, having itsfree end formed square in cross-section for suitable engagement with akey, whereby said shaft may be readily rotated. The rotation of theshaft 25 for unwinding the spring 22 is pregear 16 is arranged a coilno, in

' horizontal shaft 27 ".frame 1, as shown.

vented by means of a pawl 26 having engagement with ratchet-teeth formedintegral with the bevel gear 24 as shown. This pawl is pivotally mountedupon the bracket 20. Disposed above and near the gear 16 is a suitablyjournaled through a bracket 28 formed upon the body Upon the rotatableshaft 27 is splined a pinion 29 for movement into and out of engagementwith the teeth 15 carried by the gear 16. The pinion 29 has rigidengagement with a sleeve 30 which is also splined upon the shaft 28 andis provided with spaced annular flanges 31, as shown. A shifting lever32 is pivoted intermediate its ends, as shown at 33, to the body frame.1, and this shifting lever has its upper end bifurcated to form spacedtines which are disposed between the flanges 31. The'lower end of theshifting lever 32 has pivotal connection, as. shown at 34, with theoff-set portion of the operating rod 8., From the construction of theabove referred to parts, it is obvious that when the operating rod 8 ismoved rearwardly the pinion 29 is first moved into. engagement with theteeth 15 and upon further movement of this operating rod the tooth 14disengages the teeth 15. The pinion 29 will then be rotated .by thehollow gear 16, by virtue of the coil spring Within the same, to returnthe carriage 2 to its starting position. In order that this rotation ofthe pinion 29 may beemployed, as above stated, the shaft 27 is providedupon its inner end with a pulley 35 fast upon said shaft. This pulleyhas a suitably flexible strip 36 wound about the same, one end of saidstripbeing fixedly secured to the pulley 35, as shown at 37,- and theother end of said strip being fixedly secured to the right end of thecarriage 2, asshownat'38.

From the. description of the above referred to parts, it is obvious thatwhen the pinion 29 is rotated in the direction ofits arrow, the pulley35 will be correspondingly rotated and the strip 36-wound upon said--pulley'to returnr the carriage to its starting position. Specialattention is called to the fact that while the carriage 2-is moving tothe left, which is the ordinary escapement movement, the pinion 29 isdisengaged from the teeth 15, whereby this pinion will be free to rotatewithout effecting the rotation of the hollowv gear 16, which is nowlocked against rotation by the tooth 14.

The operating rod 8 is provided near its' center with a rigid inwardlyextending arm 39, operating'within an opening; 40 formed through thebase of the body frame 1. The inner end of the arm 39 hassuitablepivotal connection with a swinging lever 41, which is fulcrumedintermediate its'ends,-- as shown I at .42,'up.01i bracket 43,"havin'gsuitable 32, whereby connection with the body frame 1. .The upper end ofthe swinging lever '41 is suitably pivotally connected with ahorizontally swinging lever 44, as shown at 45. This leverv 44 haspivotal connection intermediate its ends, as shown at 46, with a bracket47, which is fast upon the body frame, 1. The left end of the lever 44is pivotally connectedwith an arm 50, als'shown at 51.

This arm carries a cylindrical sleeve 52, having an axial opening formedtherethrough for loosely holding a U-shaped rod 53.v The transverse endsof this-U-shaped rod are slidably mounted through brackets: 54 havingrigid engagement with the carriage' 2. The transverse ends of the U-shaped rod 53, have pivotal connections, as shown at 55, with fingers 56carrying teeth 57 upon their lower sides. The teeth 57 engage teeth 58formed upon disks 59, which are rigidly connected with the ends ofthe'platen 3. The fingers 56 are pressed downwardly so that the teeth 57engage the teeth 58, by means of leaf springs 60, suitably connectedwith said transverse ends, as shown at 61. Special attention is calledto the fact that the arm 50 and its sleeve 52 does not interfere withthe-longitudinal movement of the U shaped rod 53, which,

as is obvious,must move longitudinally with the carriage. '2. I

Lugs 62 are formed upon the upper portion' of the body frame, to limitthe return movement of the carriage 2, and these lugs are provided withrubber buttons 63. to take up the shock when the carriage 2 isstopped bysaid lugs, It' is to be'understood that when the carriage. 2 is moved aspace the pinion 24 is rotated a cog, whereby said pinion 24 maybeireadily moved into mesh with the'teeth of thegear 16, irrespective ofthe particular position assumed by the carriage, As clearly. shown inFig. 1, the shaft 27 carries a slight spring 27, one '.end' of which issecured to the body frame, and the otherend secured to the shaft 27.This spring tends to rotate pulley 35 in a direction oppositeto thatcaused by the escapement movement of the carriage,

whereby said strip'36 remainssuitably tight and the gear 29 rotated acog for each space movement of saidca'rriage, as above stated.

In .the operation of the machine, after the carriage 2 has completedits. e'scapement movement,-the gperator presses the key 9 rearwardly toe e ct a corresponding move- -ment. of the operating rod 8. The movementof the rod 8 actuates the shifting lever] v the pinion 29 is firstmoved into mesh with the teeth 15, after which the tooth 14"releases thehollow gear-16.- This gear is now rotated by the spring 22,,'caus ingthe rotation of the pinion 29 and pulley '35, The flexible strip 36 isnow wound upon "the pulley 35, to return the carriage to its operatingrod- 8 is released, and the same returned to its most forward normalposition'by means of springs 13. This reverse movement of the rod 8disengages the pinion 29 from the teethlfi, as clearly illustrated a inFig; 1. The teeth 57 now trip along the teeth 58 of the disks 59, and donot rotate the platen, when the rod 53 and'arm 50 are moved forwardly.

I. wish'it" understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the a typewriter anda platen carried thereby, of

a driving gear for cooperating with aid carriage, a driven gear,connecting means between saiddriven gear and said carriage, a shiftinglever to move 'said driven gear into and out of engagement with saiddriving.

gear, and a devlce to move the shifting lever and carrying means to locksaid driving gear- 40 against rotation.

2. The combination with the carriage of a typewriter, ,of 'a driven gearto cooperate therewith, connecting means between said gear and carriage,a driving gear to move the driven, gear, a shifting lever to move thedriven gear into and out of engagement with the driving gear, anoperating rod'to move the shifting lever, and means carried by saidoperating rod to lock the driving gear against rotation when the same isout of engagement with the driven'gear.

'3. The combination with the carriage of a typewriter, of a driven gearto co'o'perate therewith, connecting means between said driven gear andcarriage, a driving gear to move'the driven gear, a shifting lever tomove the driven gear into and. out of engagcment with the driving gear,an operating and to move the shifting lever and proi .60 vided withmeans to lock the driving gear against rotation,and means to urge saidop- ,erating lever in a direction to disengage the driven and drivinggear.

4 The combination with'the carriage of the scope of the subthereof, andmeans actuated 'riage, a driven gear and 1 a typewriter and a platencarried thereby,

of means to eflect the return movement of said carriage, including aplurality of cooperating gears capable .of having relative movement toen age and disen age each other, a shiftin lever to effect this relativemovement, a re to move said shifting lever, and means actuated by saidrod, to rotate the platen.

5. The combination with the carriage of a typewriter and a platencarried thereby, of means to efiect the return movement of saidcarriage, including a plurality of 'cooperating gears capable of.havingrelative movement to enga e and disengage each other, means to e ectsaid relative movement between said gears, and means to rotate theplaten, said last named means hav- 7 ing connection with the secondnamed means to be actuated thereby.

6. The combination with the carriage of a typewriter and a platencarried thereby, of means to effect the return movement of said platen,including a plurality of co operating gears capable of having relativemovement to en age and disengage each 90. other, a shifting ever toefi'e'ct sald relativemovement, a rod'to move said shifting'lever, meansconnected with said rodto engage one of said gears for preventin therotation by said rod, to rotate the platen.

7. The combination with the carriage of a typewriterand a platen.carried thereby, o'f a driving gear to cooperatewith said caroperatingrod arranged near diametrically opposite points of said driving gear,means connecting said operating rod and driven gear so that the drivengear is moved by said operating rod, and in an opposite directionthereto, means connected with said operating rod to prevent the rotationof said driving gear, and means connecting said driven gear andcarriage.

8. The combination with the carriage of a typewriter and a platencarried thereby, of a driving gear to cooperate with said carriage, adriven gear arranged above the driving gear to be moved into and out ofengagement therewith, means connecting said drlven gear and carriage, ano crating rod movably mounted below said riying gear, means connectedwith said operating rod to prevent the rotation of said driving gear,and a shifting lever pivoted intermediate its ends and havingconnections with said driven gear and operating rod.

9. The combination with the carriage of a t pewrit er and a platencarried thereby, of a riving gear to cooperate with said carriage, adriven gear and operating rod arranged 1 near diametrically oppositepoints of said. driving gear, means connecting said 0 erating lever anddriven car so that the riven. gear is moved by sai operating rod and inan opposite direction thereto, means to ro- 1 0 tate' said platen havingconnection with said operating rod, means connected with said operatingrod to prevent the rotation of said driving gear, and means connectingsaid driven gear and carriage.

10. The combination with the carriage of a typewriter and a platencarried thereby, of

a driving gear. to cooperate therewith, a

' driven gear and operating rod arranged near motion opposite t saiddriving gear, a shifting lever pivotedintermediate its ends and havingconnections with said driven gear and operating rod, means connectedwith said operating rod to prevent the rotation of said driving gear,and

means connecting said driven gear and carriage. .7

12. The combination with the carriage of a typewriter and aplatencarriedthereby, of a driving gear to cooperate with said earriage, adriven gear arranged above the driving gear to be'moved into and out ofengagement therewith, an operating rod disposed below said driving gear,means connecting said driven gear and carriage, and'a shifting leverpivoted intermediate its ends and having connections with said drivengear and operating rod. I

13. The combination with the carriage of a' typewriter and a platencarried thereby,

of a driving gear to cooperate with said ear- -r1age, a driven gearandoperating rod arranged near' diametrically opposite .points of saiddriving gear, a shifting lever pivoted intermediate its ends and havingconnections with said driven gear and operating rod, meansconneeted withsaid operating rod to prevent the rotation of said driving gear, meansfor moving said operating rod in a direction to effect the disengagementof the driving and driven gears, and means .con-

necting said driven gearand carriage.-

14. The combination with the frame of a typewriter and a carriagemovably mounted thereon, of a shaft rotatablymounted upon said frame, aflexible member connecting said shaft and carriage, an elastic memberfor rotating said shaft'in a direction to -tighten said.flexible,member, a gear splined' upon said shaft, a second gear, andmeans to move the first named gear into and outof engagement with saidsecond named gear.

In testimony whereof I'aflix my signature in presence of two Witnesses.v

' LAYTON BROWN. Witnesses 1 FRANK L. ZIMMERMAN,

ETHEL SIBSON.

Gopies of this patent may be obtained for five cents each, by addressingthe' Commissioner of Patents,

Washington, D. G. i i

